He ran for class leader/president.

Question

He ran for a class leader/president.
He ran for the class leader/president.
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Q1: Which expressions are right? Do we have to put an article before 'class leader'?

Q2: Which one is better, class leader or class president?

Q3: Do you use 'vice class leader' or vice class president'?

Answer 1

1 is the most commonly used sentence.

We usually use class president and class vice president.